Modified abdominal exercise device



FIG. 1 is a perspective view of a modified abdominal exercise device;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof, but with portions of the environmental structures shown in broken lines;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear elevation view thereof.

The broken line portions of the disclosure are for environmental purposes only and form no part of the claimed design. 

The ornamental design for a modified abdominal exercise device, as shown and described. 